#include <SoftwareSerial.h> //include SoftwareSerial library

SoftwareSerial myAttinySerial(0,1);// Define pins 0 and on as serial pins 0 is RX ans 1 is TX

#define BUTTON 3 //Define on Attiny board button pin 3
#define LED 2   //define on Attiny board LED
int state =0; //set variable to monitor the state of the button

 void setup() {
  
    myAttinySerial.begin(9600); //begin my defined SoftwareSerial
    pinMode(BUTTON,INPUT); // set BUTTON as an OUTPUT pin
    pinMode(LED,OUTPUT); // set LED as an INPUT pin
 }

void loop (){
  
    state = digitalRead(BUTTON); //Read the BUTTON  and save it's value on status variable
    if(state == HIGH){  // If BUTTON is pressed 
     myAttinySerial.println("Hi I'm Attiny"); // Send this string to SoftwareSerial
     digitalWrite(LED,HIGH); //lights the LED
     delay(1000); //wai for 1 second
    }

    digitalWrite(LED,LOW); // Turn LED off
    delay(1000);
    //}
    }